This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 11 |
| 3 | 137 |
| 4 | 3132 |
| 5 | 114593 |
| 6 | 6140229 |
| 7 | 453338814 |
| 8 | 44121855371 |
| 9 | 5474077896301 |
| 10 | 843294200412824 |
| 11 | 157932881837206305 |
| 12 | 35337905804772937033 |
| 13 | 9310387452563459134906 |
| 14 | 2852935306612118864199659 |